Die for forming ax-blanks



(No Model.)

A. SIEGEL.

DIE FOR FORMING AX BLANKS.

N0. 375,573. Patented 1360.27, 1887.

UN TED STATES PATENT OFFICE.

ANDREW SIEGEL, OF HYDE PARK, MASSACHUSETTS.

DIE FOR FORMING AX-BLANKS.

SPECIFICATION forming part of Letters Patent No. 375,573, dated December 2'7, 1887.

Application filed September 8, 1887. Serial No. 249,095.

of which the following is a description suffi ciently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation ,of the upper die; Fig. 2. an end view of the same; Fig. 3, aside elevation of the bed and turning-bar; Fig. 4, an end elevation of the same, as viewed from the left in Fig. 3; Fig. 5, a bottom plan view of the upper die; Fig. 6, a top plan view of the lower or bed die removed from the turningbar and expanded; Fig, 7, a longitudinal section of the bed-die, taken on the line on a: in Fig. 6; Fig. 8, an end view of the'bed-die; Fig. 9, an end elevation of the bed and turning-bar, asviewed from the right in Fig. 3; Fig. 10, atop plan view of the bed-die, turning-bar, and bed, the handle of the turning-bar being represented as broken off; and Fig. 11, a vertical longitudinal section of the turning-bar, taken on the line 3 y in Fig. 10.

Likeletters ofreferenceindicatecorresponding parts in the different figures of the drawings.

My present invention is designed as an improvement on the die shown and described in Letters Patent of the United States N 0. 351,492, dated October 26, 1886; and it consists in a novel construction and arrangement of parts, as hereinafter more fully set forth and claimed, the object being to produce a more effective device of this character than isnow in ordinary use.v

The natureand operation of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the bed, B the upper die, and C the turningbar. The upper die is provided with a downwardlyprojecting punch, D, adapted to punch or form the eye a in the blank E, and jointed at b to the lower portion of said die there is a frame, F, provided with springs 40, which act con- (No model.)

tractively to keep the same elevated. Arranged transversely of the die B there is a flat bar, G, which is centrally pivoted by studsd 5 5 in elongated slots formed in the side pieces of the frame F. This bar. is provided near its center with ahole, f, through which the punch D passes loosely. It also fits into a corresponding recess, 9, formed in the lower face of the die B, and when the frame F is raised to its full extent thelower side of said bar is flush with the lower side of said die.

Projecting from each end of the bed A there is a standard, H, provided with a vertically arranged elongated slot, h. The turning-bar Gis rectangular in cross-section, with slightly rounded edges, and is provided with a trunnion, t, at each end, the trunnions being inserted in the slots h of said standards,and one provided with a horizontally-arranged handle, 70, by which the turning-bar may be manipulated.

The beddie J consists, essentially, of two side pieces, m, and two end pieces, q. The side pieces are cut away at the ends on their adjacent faces to admit the end pieces,as shown in Figs. 6 and 7. The end pieces are pivoted near their lower ends to the side pieces by means of the rods 1, which are fast in said end pieces, but work loosely in holes in the side pieces. A flange, w, (see Fig. 7,) projects inwardly from the bottom of each of the side pieces, said flanges constituting the bottom of the bed-die when said die is closed and being cut away at their centers to form the hole 2 for receiving the punch D. A coiled spring, 1., is disposed around one end of each of the rods r, each of said springs having one of its ends attached to an end piece and the other to one 0 closed and grasp the blank E. The inner faces 10c or the walls of the side pieces, m, and end pieces, g, are concaved to correspond approximately with the contour or shape it is desired to give the ax. A bar, K, provided at its up- The turning-bar O is centrally pro- 5 per end with an inwardly-projecting hook,27, is fitted to slide vertically on two arms, 28, secured to one end of the bed A, said bar being provided with slots 29, into which studs 30, mounted in the ends of said arms, extend. A hook, 31, is rigidly secured to one end ofa rod, 32, which extends longitudinally through a hole in the bed A, said hook being provided with a slot, 34, in which a stud, 35, on said hook is fitted to work. A hook, 37, is rigidly secured to the opposite end of the rod 32, said last-named hook beingprovided with a handle, 39, by which it and also the rod 32 and hook 31 may be turned.

In the use of my improvement the bed A and die B are first secured, respectively, to the platen and plunger-head of a press, and the blank E is heated and placed in the beddie J,with the lower edge resting on the bottom w of said die, after which the die is placed in the mortise 25 of the bar G and the bar adjusted on the bed A with the wider or flaring opening of said mortise upward, the hooks 31 and 37 being at the same time turned down by the handle 39 into the position shown in Figs. 4. and 9. The press is then operated to drop the dieB and force the punch D into the blank, thus forming one half of the eye a, and at the same time forcing the blank E outward or expanding and wedging it in the die J. The press is next operated to raise the upper die, thereby withdrawing the punch from the blank, after which the bar 0 is turned by the handle 7c. The upper die is then dropped again to punch or form the other half of the eye a, after which it is again raised and the punch withdrawn from the blank. The bar 0 is now turned again to bring the die J into its normal position and the wider or flaring open ing of the mortise 25 upward, after which the hooks 31 and 37 are turned by the handle 39 until they engage the trunnions i on the bar 0, and secure said bar in position on the bed A. As the hook 31 is raised to bring it into position to engage the trunnions t, it acts on the stud 35 in the slot 3i and raises the bar K, thereby bringing the hook 27 into position to engage the free end of the pivoted frame F on the die 13 when said die descends, as shown by the dotted lines 44 in Fig. 3. The press is now operated to drop the die B, causing the punch to enter and wedge itself in the first hole formed in the blank E and the hook 27 to engage the frame F, after which the die B is raised. The bar 0 being held down to the bed A by the hooks 31 and 37, the die J will be partially withdrawn from the mortise 25 and expanded by its springs 15 as the die B rises. The die J being new expanded and the blank E thereby released, said blank will be withdrawn from said die by the upwardlymoving punch D and stripped from the punch by the stripper-bar G, preparatory to inserting a new blank and repeating the operation. The bar K is elastic, thereby enabling its hook 27 to be disengaged from the frame F after the blank has been stripped from the punch and when the hooks 31 and 37 are disengaged from the bar 0. Any other suitable means for disengaging the hook 27 from said frame may, however, be employed, if desired.

1 do not confine myself to the use of the springs t for expanding the die J, as any suitable springs may be employed for that purpose. Neither do I confine myself to the use of stripping mechanism,eonstructed precisely as shown, for stripping the blank from the punch D, as this may be varied considerably without materially departing from the spirit of my invention.

Having thus explained my invention, what I claim is-- 1. In a device of the character described,

the combination of the following instrumentalities, to wit: an expansible bed-die for holding the blank, a turning-bar in which said (116 is inserted, a bed on which said die may rest, a punch for punching or forming the eye in said blank, a stripper adapted to automatically strip the blank from the punch, and hooks for securing the turning-bar in position on said bed, substantially as set forth.

2. In a device of the character described, the die J, consisting of the side pieces, m, end pieces, q, and springs t, said end pieces being pivoted to said side pieces, and said springs adapted to expand said die, substantially as set forth.

3. The side pieces, m, having the flanges 10, adapted to form a bottom to the die when joined, said flanges being cut away at z to form a hole for the punch D, substantially as described.

4. The die B, provided with the frame F,car-

rying the pivoted bar G, in combination with the punch D, and a hook adapted to engage said frame and cause said bar to strip the blank from said punch as the die B rises, substantially as described.

5. The bar K, provided with the hook 27 and slots 29 and 34, the arms 28, provided with the studs 30, the rod 32, mounted in the bed A, the hook 31, provided with the stud 35 and attached to the rod 32, and the hook 37, provided with the handle 39 and attached to the rod 32, the pivoted frame F, die B, and punch D, combined and arranged to operate substantially as set forth.

6. The expansible die J, in combination with the turning-bar 0, having the flaring mortise 25, substantially as described.

ANDREW SIEGEL.

Vitnesses:

O. A. SHAW, E. J. J ORDAN. 

